Method of and apparatus for making tapered disks



-, Feb. 7, 1928. Y

Y ,A. G. HEINLE ET AL METHOD OF AND APPARATUS FOR MAKING 'TAPERED DISKS Filed March so ,1920

Patented F 7, 1928..

ALBERT G. Z-IEIIE'ILE A353 ALBERT W. HEINLE, Oi? CRAFTQN, PENITSYLVAHIA.

METHOD 6? AND APPARATUS FOR MAKIN G TAPERED DISKS.

Application filed March 3Q, 1920. Serial No. 370.627.

Figure l is a plan view showing one form of finishing rolls in accordance with the present invention, and the table or support which cooperat s therewith, and

Figure 2 is a plan view of a finished disk.

Our invention has relation to the mend tactureof tapered disks, uch as are used in making vehicle wheels coulters, and for various other purposes.

Our invention is designed to provide a simple and practical method by which tapered disks may be readily and accurately I formed by the use of roll apparatus of simple character.

A further object of our invention is to provide a method of this character by which the tapering may be eiiected with a minimum distortion of the grain or ot' the metal and without destroying the original surfaces of the plates.

Our invention also provides ap Jaratus 0' simple and pactical character for use connection with the improved method.

In the manufacture of a tapered disk in accordance with our invention, we provide a blank which is preferably generally circular although it may be of polygonal form approximating a circle. This blank we subject to tapering and finishing operations which are preferably carried out by means of tapered overhung finishing rolls 11 and 12. In subjecting the disk to the action of these rolls, it is placed upon a suitable table or support 13, such as shown in Figure 1. For this purpose the blank, at the time it is originally formed, is provided with a central opening a which may he slipped over apin i lon said support and therebycentered. The support 13 is p1voted, at 15, at one side of the longitudinal line of the finishing rolls 11 and 12, and is provided with a handle portion 16 extending to the opposite side of such center line. Any suitable means such as the bars 17 and 17, may be provided for carrying this table or support. The latter is cut away at one ,s'ida-as indicated at 18, in order to enable the .disk thereon to be acted upon by said rolls. The table or support is so arranged tl its center post or pin i l is at a distance to that side of the center line of the rolls 11 and 12 which is farthest from the center 15.

The disk is placed'upon this table supportin the manner shown in igure 1, and is inserted to the action-0t the rolls 11 and 1" Owing to the position of the center 15 with respect to the center line of the rolls 11 and 12, it will be seen that the disk is first gripped between said rolls at its peripheral portion and in a manner to cause the disk to be rotated about the pin I-l. In this mannor, the rolls rotate said disk to their action, thereby imparting the desired complete finish to the surfaces thereof.

While we have shown the rolls 11 and 12 as being driven from th same pinion housing as the rolls 2 and 3, it will be obvious that these rolls may be driven in any suitable manner. They may be provided with the usual screw-downmechanism by which the distance between their centers may be varied to su t different thicknesses of the disks. As indicated in Figure 1, we preferably make the centers 14 and 15 adjustable by means of the slots 14a and 15 to also adapt said rolls and the table or support to disks of different diameters.

'The advantages or our invention will be apparent to those skilled in this art, since it provides a method of forming tapered disks which eliminates any cutting away of the surface of the disks, or the destruction of the original rolled surf-aces thereof; and in which the distortion or the grains or fibres of the metal is reduced to a minimum.

WVe do not desire to limit ourselves to the particular apparatus which we have herein shown and described, as it will be apparent to those familiar with this art that the radial stretching and tapering operations may be carried out with other forms of apparatus, as may also be the finishing operations.

If e claim:

1. Apparatus for forming tapered disks, comprising a pair of tapered over-hung finishing rolls for rolling a disk into tapered term and a movable disk support for cooperation with said rolls, said support having means for centering a disk thereon in a position at one side or the longitudinal center line or"- the rolls said support being pivoted the opposite side oi said center line, said support and the pivot point being spaced a distance at least equal to one-half the diameter of the oisk to he rolled.

2. Apparatus for forming tapered disks, comprising a pair of tapered overhung fin ishing rolls for rolling a disk into tapered term and a movable disk support for cooperation with said rolls, said support having means for centering a disk thereon in a position at one side of the longitudinal center line of the rolls, said support being pivoted at the opposite side or said center line, together with means located entirely at one side of the longitudinal center line of the rolls whereby said support may be shitted relatively to the rolls in the direction of the longitudinal axes or said rolls.

Apparatus tor forming tapered disks, comprising a pair oi tapered overhung linishing rolls :tor rolling a disk into tapered form, a movable disk support cooperating with said rolls, said support having means for centering a disk thereon in a position at one side of the longitudinal center line oil the rolls, said centering means being movable transversely with respect to the center line of the rolls and without movement oi said support, and a pivotal mounting for said support on the opposite side of the center line of said rolls from said centering means, substantially as described.

4. Apparatus for forming tapered disks, comprising a pair of tapered overhung rolls, a disk support for cooperation with said rolls, a center on said support for centering a disk in position on said support, means for moving said support to produce a bite on the disk along the line of a chord of sait disk, and means for moving said support about a center entirely outside of the periphery of a supported disk to advance the center of the disk progressively into the line of bite, substantially as described.

5. Apparatus for forming tapered disks, comprising a pair of tapered overhung rolls for rolling a disk into tapered form, a disk support tor cooperation with said rolls, a pivotal mounting for said disk support, a center on said support, and means for mov ing said support to cause said center to move along an arc of a circle extending about said pivotal mounting and intersecting the plane containing the axes of rotation of the rolls at the point of maximum bite of the rolls, substantially as described.

6. Apparatus for tormmg tapered disks,

comprising a pair of tapered overhung rolls for rolling a disk into tapered form, a disk support for cooperation with said rolls, a pivotal mounting for said disk at one side 01"- the center line of the rolls support, center on said support, and means for mov ing said support to cause said center to progressively approach the line of bite of the rolls, the path oi movement of said cen ter being uniform and intersecting the line of bite of the rolls, substantially as described.

7. Apparatus for forming tapered disks, comprisin a pair of tapered overhung rolls for rolling a disk into tapered form, a disk support for cooperation with said rolls, a pivotal mounting "for said disk support lothe rolls, moving said center to cause the rolls to bite the blank along a chordal line of the blank, and then moving said center to advance the center along a curved line which joins the opposite ends of a line radiating from said center and extending parallel to the radius of the blank which has its outer end intersecting said chordal line at the periphery of the blank, substantially as described.

9. l he method of forming tapered disks by rolling, comprising forming a circular blank, mounting said blank about a center, supporting said center for cooperation with the rolls, moving said center to cause the rolls to bite along a chordal line of the blank, and then moving the center along a. curved line which joins the opposite ends of a line radiating from said center and extending parallel to the radius of the blank which has its outer end intersecting said chordal line at the periphery of the blank to advance the same progressively into the line of bite of the rolls and axially thereof, substantially as described.

10. Apparatus for forming tapered disks, comprising a pair of tapered overhung rolls for rolling disks into tapered form, and a movable disk support for cooperation with said rolls, said support having means for centering a disk thereon in a position at one side of the longitudinal center line ofthe rolls and being pivoted at the opposite side of said center line outside of the periphery of a disk to be rolled, said rolls being constructed to permit the periphery of the disk being rolled to extend between the rolls and beyond the line of bite thereof, substantially as described.

11. In an apparatus for rolling tapered disks, a pair of overhung rolls adapted to extend over a substantial portion of a diskand produce a bite at all times along a line at one side of the center of the disk, means for advancing the disk along an arcuate line into the line of bite of said rolls, said means being adapted to hold the disk with a por tion oi its periphery extending a greater distance lengthwise the rolls than the portion or the periphery where the line of bite in tersects the periphery thereof, substantially as described.

12. In an apparatus for rolling tapered disks, a pair of overhung rolls, means for ad vancing the disk to be rolled along an arcuate line into the line of bite of said rolls, said means being adapted to hold the disk with a portion of its periphery extending a greater distance lengthwise of the rolls than the portion of the periphery Where the line 03": bite intersects the periphery thereof, whereby the rolls automatically draw the disk into the line of bite, substantially as described.

13. In an apparatus for rolling tapered disks, a pair of overhung rolls, means for advancing the disk to be rolled along an arcuate line into the line of bite of said rolls, said means being adapted to hold the disk with a portion of its periphery extending a greater distance lengthwise of the rolls than the portion of the periphery Where the line 01": bite intersects the periphery thereof,

substzuitially as described.

14. In an apparatus for rolling tapered disks, a pair of overhung rolls, means pivot-ally mounted at one side of the center line of the rolls for advancing the disk to be rolled into the line of bite of sair rolls along an arcuate path intersecting the line of bite of the rolls to cause the rolls to bite the disk along the line ofa chord thereof, said means being adapted to hold the disk with its center on one side of the center line of the rolls where by the rolls automatically draw the disk into the bite thereof, substantially as described.

In testimony whereof, We have hereunto set our hands.

ALBERT G. HEINLE. ALBERT W. HEINLE. 

